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How to add class to an element without addClass() method in jQuery ?

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The task is to add a new class to the element without using addClass() method with the help of jQuery. There are two approaches that are discussed below:

Approach 1: To perform the operation, we can use toggleClass() method to toggle the class which we want to add to the element.

  • Example:




    <!DOCTYPE HTML>
    <html>
      
    <head>
        <title>
            How to add class to an element without
            addClass() method in jQuery ?
        </title>
      
        <script src=
        </script>
      
        <style>
            #el {
                background: green;
            }
      
            .newClass {
                color: white;
            }
        </style>
    </head>
      
    <body style="text-align:center;">
      
        <h1 style="color:green;">
            GeeksForGeeks
        </h1>
      
        <p id="GFG_UP"></p>
      
        <p id="el">This is the element</p>
      
        <button onclick="GFG_Fun()">
            Click Here
        </button>
      
        <p id="GFG_DOWN"></p>
      
        <script>
            var el_up = document.getElementById('GFG_UP');
            var el_down = document.getElementById('GFG_DOWN');
      
            el_up.innerHTML = "Click on the button to "
                        + "perform the operation.";
                          
            function GFG_Fun() {
                $('#el').toggleClass('newClass');
                el_down.innerHTML = "Class has been added";
            }
        </script>
    </body>
      
    </html>

    
    

  • Output:

Approach 2: We can also use attr() method and prop() method to add a new attribute ‘class’ to the element.

  • Example:




    <!DOCTYPE HTML>
    <html>
      
    <head>
        <title>
            How to add class to an element without
            addClass() method in jQuery ?
        </title>
      
        <script src=
        </script>
      
        <style>
            #el {
                background: green;
            }
      
            .newClass {
                color: white;
            }
        </style>
    </head>
      
    <body style="text-align:center;">
      
        <h1 style="color:green;">
            GeeksForGeeks
        </h1>
          
        <p id="GFG_UP"></p>
      
        <p id="el">This is the element</p>
          
        <button onclick="GFG_Fun()">
            Click Here
        </button>
          
        <p id="GFG_DOWN"></p>
      
        <script>
            var el_up = document.getElementById('GFG_UP');
            var el_down = document.getElementById('GFG_DOWN');
      
            el_up.innerHTML = "Click on the button to "
                            + "perform the operation.";
                              
            function GFG_Fun() {
                $('#el').attr('class', 'newClass');
                el_down.innerHTML = "Class has been added";
            }
        </script>
    </body>
      
    </html>

    
    

  • Output:


Last Updated : 24 Apr, 2020
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